Nut-lock.



No. 632,275, Patented Sept. 5, |899.

J. OLEARY.

NUT LOCK.

, (Applicatio'n led Oct. 18, 1898.

(No Model.) Y V .Til A A f f /w ,A l y y :ll W Q Y PATENT Prion.

JEREMIAH OLEARY, OF VALLEY JUNCTION, IOWA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent N o. 632,275, dated September 5, 1899.

Application filed October 18, 1898. Serial No. 693,944. (No model.)

To aZZ whom t may concern:

Be it known that I, JEREMIAH OLEARY, a citizen of the United States, residing at Valley Junction, in the county of Polk and State of Iowa, have invented a new and useful Nut- Lock, of which the following is a specification.

My object is to provide a simple, strong, durable, and convenient nut-lock specially adapted for railway rail-joints and like connections where it is important to maintain nuts securely fastened on bolts.

My invention consists in a key adapted to be slidingly and detachably connected with the splice-plate of a railway-joint or any flat surface having a key-seat constructed and combined with a bolt and nut, as hereinafter set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which- Figure 1 is a perspective view showing my invention applied to a piece of a railway splice bar. Fig. 2 is a side View of a railway railjoint, showing the nuts locked on the bolts by means of my device, as required for practical use. Fig. 3 is a transverse sectional view of the railway rail-joint and my nut-lookin g device. Fig. 4 is a detail view showing the key placed in the initial position required to introduce it into the key-seat in the splice-bar. Fig. 5 shows a nut locked to the liat face of overlying metal bars by means of a modification of my device. Fig. 6 is a transverse section of a railway splice-bar having a key-seat adapted for a modified form of key. Fig. 7 shows a modied form of key.

The letter A designates a railway splicebar that may vary in size and form to fit the abutting ends of different forms of rails. A key-seat B is formed in the outside face of the bar, as clearly shown in Figs. 3 and 4, to extend transversely. At one edge there is an angular mortise c, that intersects the main cavity adapted to receive and retain the body portion of the key.

d is a cross-bar formed integral with the bar A or iixed thereto at the end of the cavity or key-seat B.

In the modiied form of key-seat shown in Fig. 6 the cavity or key-seat B2 extends through the bar from one face thereof to the other, and round perforations intersect each end of the cavity B2, as required to admit the round extensions of the key shown in Figs. 5 and 7.

H is the body of the key in the form of a solid quadrangular block adapted to Iit in the cavity or key-seat B. It has an integral hook K at one end adapted to engage the cross-bar d, as shown in Figs. 3 and 4. It also has a shoulder Z and a straight extension m at its other end adapted to enter the mortise c, as shown in Fig. 3.

In the modified form of key the body portion ITI2 has a wire hook K at one end and a wire extension m at the other end, as shown in Figs. 5 and 7. The wire may be placed in a mold and the body c of the key united therewith by casting the key in a mold, or the two parts rigidly united in any suitableway.

In the practical use of my invention when a nut is placed on a bolt, as shown in Figs. l, 2, and 3, the hook K on the end of the key H is first placed in position, as shown in Fig. 4, and then brought into parallel position with the face of the key-seat cavity and the extension m introduced into the mortise c by first moving the key in an opposite direction from the mortise and sliding it in a reverse way to allow the extension to enter the mortise, as clearly shown in Fig. 3, and the top portion of the key and iiat side thereof to abut against the flat face of a nut, as required to prevent the nut from turning on the lbolt as long as the key remains in the cavity or key-seat. It is obvious that the nut can be readily unlocked at any time by simply making reverse movements of the key and removing the key from contact with the nut.

Having thus described the construction and operation of my invention, its utility is obvious, and what I claim, and desire to secure by Letters Patent therefor, is

l. A nut-lock consisting of a key having an angular body portion, a hook projecting from one end and a straight extension at the other end, in combination with a bar having a iiat face, an angular cavity or key-seat extending inward from said face and a cross-,bar at one end of the cavity and a mortise intersecting at one end and a straight extension m at the the other end of the cavity or key-seat, to op# other end, in combination with a. nut on a erate in the manner set forth.

2. A nut-look comprising a bar A having a bolt, substantially as shown and described. Io cavity or key-seat B in its outside, a eross- I bar CZ at one end of the key-seat and a mortise c at the other end, a solid block or key H tted in said key-seat and provided with a hook K JEREMIAH OLEARY. Wfitnesses:

C. L. MILLER, H. L. SEYFERT. 

